Year	constant 2010 US$
1991	14611901126.6646
1992	14918991238.5135
1993	13406304609.0096
1994	15245649419.3553
1995	20796847618.872
1996	22710532322.6988
1997	27878248379.4929
1998	32211730457.6148
1999	36012037458.1317
2000	44995392075.1162
2001	48964683470.1622
2002	51767998111.9931
2003	55007190798.1709
2004	64862680254.0745
2005	73213129427.6908
2006	87511466083.9246
2007	101618031135.12
2008	108638261309.406
2009	96253251361.3829
2010	107133262534.414
2011	114146156388.934
2012	112098415229.248
2013	116784128854.781
2014	127398932589.277
2015	136582183759.102
2016	143510445331.399
2017	150284073471.485
2018	157416672820.028